Working in this app is a nightmare. Are you really serious? Saving, rulers? Only a slider for size? If you want a design more than once, you can't save the first one and build on it. Really "nice" when you have to go back and change something. You can't just change a small thing, you have to make everything all over again. Have you really tried this app yourself? This is Adobe? Amateur-isch! It's free, so ok.. But I expect more from Adobe!!